A Three‐Qubit Ising Hamiltonian For High‐Efficiency Quantum Energy Teleportation on Superconducting Hardware
Abstract
ABSTRACT Quantum Energy Teleportation (QET) leverages quantum entanglement to transfer energy between two distant locations without physically moving it. The first realization of QET on superconducting hardware, a 2‐qubit system, demonstrated about work efficiency (work relative to the deposited energy). Here we introduce a 3‐qubit approach that enhances QET's energy efficiency through a novel 3‐qubit ground state Ising Model Hamiltonian satisfying zero mean energy and anti‐commutation constraints on the sender and receiver observables. We study two protocols. In the Single‐Input Multiple‐Output (SIMO) model, a single sender (Alice) deposits energy and two receivers (Bob and Charlie) jointly extract negative energy; with every interaction term retained, including the inter‐receiver bond, the honest efficiency is to , comparable to the of the minimal 2‐qubit model but now shared by two outputs. In the Multiple‐Input Single‐Output (MISO) model, two senders (Alice and Charlie) deposit a combined energy through a single entangle‐then‐measure measurement and a single receiver (Bob) extracts it, giving a net teleportation efficiency of to , well above the 2‐qubit value, with energy conservation respected. The negative energy density at the receiver is the protocol's signature.
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